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Calcium hydroxide

Cas:
1305-62-0
Molecular Structure:
MDL:
--MFCD00010901
Molecular Formula:
Ca(OH)2
Molecular Weight:
74.09
Alias:
熟石灰Calcium hydrate Lime hydrate Caustic lime
Product order:
Name Specifications Packing Price Delivery
Calcium hydroxide USP, EP, BP, JP級 500g RMB 396 Consulting service
Calcium hydroxide ACS 500g RMB 59.4 Consulting service
Calcium hydroxide CP 500g RMB 35.2 Consulting service
Calcium hydroxide AR 500g RMB 38.5 Consulting service
Character:
軟性白色顆粒或粉末。微有苦堿味。易吸收空氣中二氧化碳生成碳酸鈣,灼熱失去水成氧化鈣。在25℃時飽和水溶液pH為12.4。能溶于甘油、蔗糖溶液和氯化銨溶液,溶于酸時能產(chǎn)生大量熱,微溶于水。有腐蝕性。半數(shù)致死量(大鼠,經(jīng)口)7.34g/kg。
密度:2.08-2.34
熔點:580℃
Quality Standard:
 
   項目ltem                               分析純    化學(xué)純
                                    (AR)          (CP)
含量[Ca(OH)2]Assay,%                                   ≥95.0          93.0
鹽酸不溶物Insoluble in hydrochl-oride acid,%           ≤0.05          0.1
氨水中沉淀物Substances precipita-
ted from ammonia solution,%                            ≤0.25          0.5
氯化物(Cl)Chloride,%                                   ≤0.01          0.02
硫化合物(SO4)Sulfur compounds,%                        ≤0.2           0.3
鐵(Fe)lron,%                                           ≤0.01          0.02
鎂鹽及堿金屬(以MgO計)Mafnesium
and alkali metals,%                                    ≤0.5           0.75
重金屬(以Pb計)Heavy metals,%                           ≤0.002         0.003


ACS級
項目名稱Item                                          ACS Grade
含量[Ca(OH)2]Assay                                     ≥95%
含量[CaCO3]Assay                                       ≤3.0%
稀鹽酸不溶物Insoluble in dilute hydrochloric acid      ≤0.03%
氯化物(Cl)Chloride(Cl)                                 ≤0.03%
含硫化合物(以SO4計)Sulfur compounds                    ≤0.1%
重金屬(以Pb計)Heavy metals(as Pb)                      ≤0.003%
鐵(Fe)Iron(Fe)                                         ≤0.05%
鎂(Mg)Magnesium(Mg)                                    ≤0.5%
鉀(K)Potassium(K)                                      ≤0.05%
鈉(Na)Sodium(Na)                                       ≤0.05%
鍶(Sr)Strontium(Sr)                                    ≤0.05%

USP, EP, BP, JP級
ASSAY 95.0 - 100.5 % 
ACID-INSOLUBLE SUBSTANCES -- 0.5 % 
CARBONATE TO PASS TEST 
HEAVY METALS -- 20 ?G/G 
ARSENIC (As) -- 4 PPM 
MAGNESIUM AND ALKALI SALTS -- < 4.0 % 
CHLORIDE (Cl) -- 330 PPM 
SULFATE -- 0.4 % 

Storage:
密封干燥保存。
用途  檢驗二氧化碳,氣體吸收。皮革脫毛,殺蟲,水處理。
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